echo on
register --quiet
table_io allow
table_io start
context none
break tailrec1_read_line
continue
finish
print *
stack
stack -d
continue
finish
stack
stack -d
continue
finish
continue
finish
step
step
step
print *
continue
finish
continue
finish
print *
retry -f
stack
stack -d
finish
print *
level 1
print *
level 2
retry -f 3
retry -f 1
stack
stack -d
continue
finish
continue
finish
step
next
next 3
delete *
continue